براغي تثبيت ذات رأس مقبس بنقطة كوب 5/16-18 × 1-1/2 بوصة | فولاذ سبائكي مطلي بالزنك (100 / عبوة)

The zinc plating held up nicely during installation without any flaking, which was my main worry with cheaper sets. I used these to lock down a pulley hub and the cup point bit into the shaft exactly as intended. Worth the money for the full box.

The cup point tip seated perfectly flush against the metal surface, giving a clean, professional look. These feel solid and durable, and the zinc coating seems like it’ll resist rust well. Exactly what I needed for a heavy-duty fastening job.

The hex socket drive made tightening these into a tight motor mount bracket surprisingly easy, and the cup point bit into the shaft without slipping. Finished the job in half the time I expected.